function v_email(email)
	{
	var xxx = new RegExp("^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+.[a-z0-9-]+(\.[a-z0-9-]+)+$","i");
	if (!(xxx.exec(email))) 
		{
		return false;
		}
	else
		{
		return true;
		}
	}

var amgWin = null;
function openAmg(site)
	{
	if(amgWin==null)
		{
		amgWin = open(site,'cda','width=400,height=300');
		//amgWin = open(site,'cda','');
		}
	else
		{
		amgWin.focus();
		}
	}
	
function sendAmg(f)
	{
	var email = f.ass_email_amigo.value;
	var email2 = f.ass_email_voce.value;
	if((v_email(email))&&(v_email(email2)))
		{return true}
	else
		{
		alert('Digite o e-mail para enviar.');
		f.ass_email_amigo.focus();
		return false;
		}
	}